CVS log for servers/slapd/back-sql/back-sql.h

[BACK] Up to [OpenLDAP] / servers / slapd / back-sql

Request diff between arbitrary revisions


Keyword substitution: kv
Default branch: MAIN


Revision 1.62: download - view: text, markup - select for diffs
Tue Jan 4 23:43:29 2011 UTC (10 years, 10 months ago) by kurt
Branches: MAIN
CVS tags: MIGRATION_CVS2GIT, HEAD
Diff to: previous 1.61: preferred, colored
Changes since revision 1.61: +2 -2 lines
Happy New Year

Revision 1.61: download - view: text, markup - select for diffs
Thu Aug 12 21:33:54 2010 UTC (11 years, 3 months ago) by ando
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Diff to: previous 1.60: preferred, colored
Changes since revision 1.60: +22 -6 lines
(blind) support for long long keys (ITS#6617; needs ITS#6622 patch)

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Tue Aug 10 17:55:28 2010 UTC (11 years, 3 months ago) by ando
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Diff to: previous 1.59: preferred, colored
Changes since revision 1.59: +4 -1 lines
(blind) addition of 'autocommit' configuration statement (ITS#6612)

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Sat Aug 7 20:30:53 2010 UTC (11 years, 3 months ago) by ando
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Changes since revision 1.58: +9 -1 lines
improve ID logging when arbitrary key is set (almost blind fix; compiles in both cases)

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Tue Apr 13 20:18:23 2010 UTC (11 years, 7 months ago) by kurt
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Diff to: previous 1.57: preferred, colored
Changes since revision 1.57: +2 -2 lines
happy belated New Year

Revision 1.57: download - view: text, markup - select for diffs
Wed Jan 21 23:40:37 2009 UTC (12 years, 10 months ago) by kurt
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CVS tags: ACLCHECK_0, ACLCHECK
Diff to: previous 1.56: preferred, colored
Changes since revision 1.56: +2 -2 lines
Update copyright notices

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Mon Jan 7 23:20:14 2008 UTC (13 years, 10 months ago) by kurt
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Diff to: previous 1.55: preferred, colored
Changes since revision 1.55: +2 -2 lines
Happy New Year (belated)

Revision 1.55: download - view: text, markup - select for diffs
Fri Nov 23 11:47:53 2007 UTC (14 years ago) by ando
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Diff to: previous 1.54: preferred, colored
Changes since revision 1.54: +7 -7 lines
silence warnings

Revision 1.54: download - view: text, markup - select for diffs
Tue Aug 21 12:52:43 2007 UTC (14 years, 3 months ago) by ando
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CVS tags: OPENLDAP_REL_ENG_2_4_MP
Diff to: previous 1.53: preferred, colored
Changes since revision 1.53: +31 -27 lines
add support for tree delete along with minor fixes (portions ITS#3497)

Revision 1.53: download - view: text, markup - select for diffs
Sun Aug 19 22:27:47 2007 UTC (14 years, 3 months ago) by ando
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Changes since revision 1.52: +11 -8 lines
rework connections so that they get cached on a per-thread basis (ITS#5095)

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Wed Apr 11 23:02:01 2007 UTC (14 years, 7 months ago) by ando
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Diff to: previous 1.51: preferred, colored
Changes since revision 1.51: +2 -1 lines
fix ';binary' certificate transport (ITS#4868); add cert to sql-test000 (mysql; psql untested)

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Mon Mar 12 23:34:37 2007 UTC (14 years, 8 months ago) by ando
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Diff to: previous 1.50: preferred, colored
Changes since revision 1.50: +7 -1 lines
add support for binary attributes (ITS#4868)

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Tue Jan 2 19:01:13 2007 UTC (14 years, 10 months ago) by kurt
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Diff to: previous 1.49: preferred, colored
Changes since revision 1.49: +2 -2 lines
happy new year

Revision 1.49: download - view: text, markup - select for diffs
Tue Jan 3 22:12:24 2006 UTC (15 years, 10 months ago) by kurt
Branches: MAIN
CVS tags: OPENLDAP_REL_ENG_2_4_BP, OPENLDAP_REL_ENG_2_4_3ALPHA, OPENLDAP_REL_ENG_2_4_2ALPHA, OPENLDAP_REL_ENG_2_4_1ALPHA, OPENLDAP_REL_ENG_2_4_0ALPHA, OPENLDAP_REL_ENG_2_3_MP
Branch point for: OPENLDAP_REL_ENG_2_4
Diff to: previous 1.48: preferred, colored
Changes since revision 1.48: +2 -2 lines
Happy new year!

Revision 1.48: download - view: text, markup - select for diffs
Wed Aug 10 14:54:45 2005 UTC (16 years, 3 months ago) by ando
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CVS tags: OPENLDAP_REL_ENG_2_2_MP, OPENLDAP_AC_MP, OPENLDAP_AC_BP, OPENLDAP_AC
Diff to: previous 1.47: preferred, colored
Changes since revision 1.47: +2 -4 lines
enable syncrepl support by default

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Sun Aug 7 18:43:07 2005 UTC (16 years, 3 months ago) by ando
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Diff to: previous 1.46: preferred, colored
Changes since revision 1.46: +1 -3 lines
remove unnecessary data from search_info

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Thu Jun 9 07:43:20 2005 UTC (16 years, 5 months ago) by ando
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Diff to: previous 1.45: preferred, colored
Changes since revision 1.45: +5 -1 lines
make aliasing and aliasing quotes configurable

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Wed May 11 22:03:50 2005 UTC (16 years, 6 months ago) by ando
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Diff to: previous 1.44: preferred, colored
Changes since revision 1.44: +4 -1 lines
remove global_schemacheck

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Sat Feb 19 11:25:55 2005 UTC (16 years, 9 months ago) by ando
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Diff to: previous 1.43: preferred, colored
Changes since revision 1.43: +1 -2 lines
honor abandon/cancel (ITS#3551)

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Fri Jan 21 16:27:27 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.42: preferred, colored
Changes since revision 1.42: +4 -3 lines
(blind) improvement of column name aliasing

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Tue Jan 18 23:00:52 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.41: preferred, colored
Changes since revision 1.41: +2 -3 lines
remove all referral specific code; now referrals can be used by defining appropriate data/metadata

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Tue Jan 18 00:10:01 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.40: preferred, colored
Changes since revision 1.40: +6 -1 lines
fix different issues with referrals in searches; remove unused tests; cleanup referrals in tests so that they don't get chased; improve schema checking in modrdn and updates in general; minor cleanup

Revision 1.40: download - view: text, markup - select for diffs
Mon Jan 17 18:32:28 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.39: preferred, colored
Changes since revision 1.39: +2 -1 lines
fix several schema checking issues; add rename specific statement for entry renaming without losing ID (helps e.g. in renaming referrals, otherwise referential integrity would prevent del/add because of referenced stuff in ldap_referrals and ldap_entry_objclasses); referrals need schemacheck off otherwise objectClass chain is invalid (they need to be attached to another objectClass by now; will address this later)

Revision 1.39: download - view: text, markup - select for diffs
Sun Jan 16 22:12:36 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.38: preferred, colored
Changes since revision 1.38: +22 -6 lines
fixes for ITS#3480,3485,3489; implementation of DISCLOSE access for all operations (ITS#3472); ITS#3432.4; added value validate/pretty when applicable (see comments and #defines in back-sql.h)

Revision 1.38: download - view: text, markup - select for diffs
Sat Jan 15 17:43:34 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.37: preferred, colored
Changes since revision 1.37: +11 -1 lines
address ITS#3472/3480/3488/3489

Revision 1.37: download - view: text, markup - select for diffs
Thu Jan 13 23:39:24 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.36: preferred, colored
Changes since revision 1.36: +33 -16 lines
plug memory leak: bsi_attrs member
use tmpmemctx for bsi_attrs (should be used more for temporaries)
fix ITS#3480: allow to fetch all attrs or provide hints
fixed access check to entry for rename
TODO: fetch entries for access checking in selected code portions (e.g. rename)

Revision 1.36: download - view: text, markup - select for diffs
Tue Jan 11 23:28:37 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.35: preferred, colored
Changes since revision 1.35: +2 -2 lines
fix couple of bugs in recent 'disclose' commits; prepare for sending matchedDN when appropriate; note ITS#3480 access control issues

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Wed Jan 5 15:23:00 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.34: preferred, colored
Changes since revision 1.34: +11 -6 lines
minor naming cleanup; improvements to DN mapping layer; major docs update

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Mon Jan 3 09:51:59 2005 UTC (16 years, 10 months ago) by ando
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Diff to: previous 1.33: preferred, colored
Changes since revision 1.33: +14 -4 lines
mostly copyright cleanup; removal of unnecessary headers

Revision 1.33: download - view: text, markup - select for diffs
Sat Jan 1 19:49:57 2005 UTC (16 years, 11 months ago) by kurt
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Diff to: previous 1.32: preferred, colored
Changes since revision 1.32: +2 -2 lines
Happy New Year!

Revision 1.32: download - view: text, markup - select for diffs
Sat Jan 1 19:38:40 2005 UTC (16 years, 11 months ago) by kurt
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Diff to: previous 1.31: preferred, colored
Changes since revision 1.31: +3 -19 lines
Update notice.

Revision 1.31: download - view: text, markup - select for diffs
Sat Jan 1 15:21:55 2005 UTC (16 years, 11 months ago) by ando
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Diff to: previous 1.30: preferred, colored
Changes since revision 1.30: +140 -14 lines
apply patches 1,2,3,5,8 (with changes) from ITS#3432)

Revision 1.30: download - view: text, markup - select for diffs
Tue Nov 30 00:49:06 2004 UTC (17 years ago) by ando
Branches: MAIN
CVS tags: OPENLDAP_REL_ENG_2_3_BP, OPENLDAP_REL_ENG_2_3_0ALPHA
Branch point for: OPENLDAP_REL_ENG_2_3
Diff to: previous 1.29: preferred, colored
Changes since revision 1.29: +7 -5 lines
fix user/operational mix of attribute request

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Mon Nov 29 21:04:53 2004 UTC (17 years ago) by ando
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Diff to: previous 1.28: preferred, colored
Changes since revision 1.28: +8 -2 lines
essential support for refreshOnly syncrepl

Revision 1.28: download - view: text, markup - select for diffs
Mon Nov 29 08:36:22 2004 UTC (17 years ago) by ando
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Diff to: previous 1.27: preferred, colored
Changes since revision 1.27: +2 -1 lines
more on syncprov support

Revision 1.27: download - view: text, markup - select for diffs
Sun Nov 28 23:50:55 2004 UTC (17 years ago) by ando
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Diff to: previous 1.26: preferred, colored
Changes since revision 1.26: +7 -5 lines
first round at enabling back-sql as LDAPsync provider

Revision 1.26: download - view: text, markup - select for diffs
Wed Nov 10 23:43:33 2004 UTC (17 years ago) by ando
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Diff to: previous 1.25: preferred, colored
Changes since revision 1.25: +1 -2 lines
rework static backend initialization

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Sat Oct 16 14:16:57 2004 UTC (17 years, 1 month ago) by ando
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Diff to: previous 1.24: preferred, colored
Changes since revision 1.24: +2 -2 lines
fix typo when string keys are used

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Sun Oct 3 23:19:53 2004 UTC (17 years, 1 month ago) by ando
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Diff to: previous 1.23: preferred, colored
Changes since revision 1.23: +2 -1 lines
add support for entryUUID and entryCSN operational attributes (entryUUID is honored in filters as well)

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Sun Oct 3 19:08:54 2004 UTC (17 years, 1 month ago) by ando
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Diff to: previous 1.22: preferred, colored
Changes since revision 1.22: +10 -4 lines
improve previous commit; consistently use dn/ndn; add support for LDAP_SCOPE_SUBORDINATE

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Sat Oct 2 15:33:32 2004 UTC (17 years, 2 months ago) by ando
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Diff to: previous 1.21: preferred, colored
Changes since revision 1.21: +14 -1 lines
add (and honor) a (configurable) baseObject to workaround ldap_entries view for RDBMSes that do not support UNION in views

Revision 1.21: download - view: text, markup - select for diffs
Sat Oct 2 10:05:42 2004 UTC (17 years, 2 months ago) by ando
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Diff to: previous 1.20: preferred, colored
Changes since revision 1.20: +61 -47 lines
cleanup naming; minor fixes

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Tue Sep 28 21:27:39 2004 UTC (17 years, 2 months ago) by ando
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Diff to: previous 1.19: preferred, colored
Changes since revision 1.19: +6 -1 lines
fix, rework and optimize search base; allow orphaned entries addition

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Wed Aug 25 08:41:13 2004 UTC (17 years, 3 months ago) by ando
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Diff to: previous 1.18: preferred, colored
Changes since revision 1.18: +13 -1 lines
more definitive improvements; now write operations are consistent; plugged some more leaks/invalid frees; tests are more complete.  IBM db2 doesn't pass write test because the entries are written in a different order; need to write a script that sorts the results...

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Tue Aug 24 15:08:30 2004 UTC (17 years, 3 months ago) by ando
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Changes since revision 1.17: +5 -2 lines
write test is almost working for ibmdb2 as well...

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Sat Aug 21 07:38:08 2004 UTC (17 years, 3 months ago) by ando
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Changes since revision 1.16: +2 -1 lines
handle referrals correctly; allow to add suffix entry; fix multiple values add bug; cleanup

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Thu Apr 15 20:29:52 2004 UTC (17 years, 7 months ago) by ando
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Changes since revision 1.15: +4 -1 lines
split objectClass and attributeType mapping (should cure ITS#3091: Sybase compatibility)

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Sat Apr 10 08:17:51 2004 UTC (17 years, 7 months ago) by ando
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Changes since revision 1.14: +2 -2 lines
disable fancy key by default

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Sat Apr 10 07:33:55 2004 UTC (17 years, 7 months ago) by ando
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Diff to: previous 1.13: preferred, colored
Changes since revision 1.13: +22 -2 lines
Added provisions for a layer between the backend and the ODBC
for further mucking with data.  This can be of use in ill situations
where not all the required massaging can be done on data with SQL
by means of stored procedures, but overlays are called too early
and cannot be used to make data non LDAP compliant.
- only support for bidirectional DN mucking is provided right now
- support for other values mucking is planned
- write is not completely tested yet
- the API could change quite often; don't rely too much on it

other cleanup has been added.

Revision 1.13: download - view: text, markup - select for diffs
Thu Apr 8 07:08:28 2004 UTC (17 years, 7 months ago) by ando
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Diff to: previous 1.12: preferred, colored
Changes since revision 1.12: +27 -6 lines
General improvements:
- There might be special cases that require the unique key to be a string
  (just ran into one); since this is not a generally useful change, it's
  hidden behind #defines.
- Added essential support for telephoneNumber match; the same infrastructure
  might be useful for other specialized matches (also regular matches should
  use it to handle multiple spaces and so!).
- Fixed dynamic backend initialization.
- Cleaned up search base DN normalization (works also if no uppercase function
  is available, using case exact matches).

Revision 1.12: download - view: text, markup - select for diffs
Mon Jan 19 21:13:15 2004 UTC (17 years, 10 months ago) by ando
Branches: MAIN
CVS tags: OPENLDAP_REL_ENG_2_1_MP
Diff to: previous 1.11: preferred, colored
Changes since revision 1.11: +151 -2 lines
make file names more slapd-ish; add attribute inheritance to search attributes; precompile uppercased search

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Thu Jan 1 18:15:37 2004 UTC (17 years, 11 months ago) by kurt
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Diff to: previous 1.10: preferred, colored
Changes since revision 1.10: +2 -2 lines
Happy new year

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Sun Dec 7 18:19:18 2003 UTC (17 years, 11 months ago) by kurt
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Diff to: previous 1.9: preferred, colored
Changes since revision 1.9: +19 -16 lines
notices and acknowledgements

Revision 1.9: download - view: text, markup - select for diffs
Wed Apr 16 08:22:33 2003 UTC (18 years, 7 months ago) by ando
Branches: MAIN
CVS tags: OPENLDAP_REL_ENG_2_2_BP, OPENLDAP_REL_ENG_2_2_3BETA, OPENLDAP_REL_ENG_2_2_2BETA, OPENLDAP_REL_ENG_2_2_1BETA, OPENLDAP_REL_ENG_2_2_0ALPHA
Branch point for: OPENLDAP_REL_ENG_2_2
Diff to: previous 1.8: preferred, colored
Changes since revision 1.8: +3 -0 lines
use syntax and matching rules knowledge when preparing SQL filters (to reduce pseudo-normalization efforts and search candidate number)

Revision 1.8: download - view: text, markup - select for diffs
Thu Aug 29 08:55:49 2002 UTC (19 years, 3 months ago) by ando
Branches: MAIN
CVS tags: NO_SLAP_OP_BLOCKS
Diff to: previous 1.7: preferred, colored
Changes since revision 1.7: +4 -1 lines
- added the capability to filter based on hasSubordinate attribute
  to back-bdb, back-ldbm and back-sql (the latter with limitations);
- added handling of ":dn" attributes to extended rfc2254 filters
  and to matched value filter
- altered the behavior of get_mra() when a matching rule is given:
  now it checks whether it is compatible with the attribute syntax
  and, in case it is, the given mr is used.  In case of no type,
  the check is delayed when filtering

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Fri Aug 23 06:54:09 2002 UTC (19 years, 3 months ago) by ando
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Diff to: previous 1.6: preferred, colored
Changes since revision 1.6: +102 -15 lines
Final run of changes to back-sql; IBM db2 support has been tested.
Now related ITSes need be audited and possibly closed.

Enhancements:
  - re-styled code for better readability
  - upgraded backend API to reflect recent changes
  - LDAP schema is checked when loading SQL/LDAP mapping
  - AttributeDescription/ObjectClass pointers used for more efficient
    mapping lookup
  - bervals used where string length is required often
  - atomized write operations by committing at the end of each operation
    and defaulting connection closure to rollback
  - added LDAP access control to write operations
  - fully implemented modrdn (with rdn attrs change, deleteoldrdn,
    access check, parent/children check and more)
  - added parent access control, children control to delete operation
  - added structuralObjectClass operational attribute check and
    value return on search
  - added hasSubordinate operational attribute on demand
  - search limits are appropriately enforced
  - function backsql_strcat() has been made more efficient
  - concat function has been made configurable by means of a pattern
  - added config switches:
      - fail_if_no_mapping	write operations fail if there is no mapping
      - has_ldapinfo_dn_ru	overrides autodetect
      - concat_pattern		a string containing two '?' is used
				(note that "?||?" should be more portable
				than builtin function "CONCAT(?,?)")
      - strcast_func		cast of string constants in "SELECT DISTINCT					statements (needed by PostgreSQL)
      - upper_needs_cast	cast the argument of upper when required
				(basically when building dn substring queries)

Todo:
  - add security checks for SQL statements that can be injected (?)
  - re-test with previously supported RDBMs
  - replace dn_ru and so with normalized dn (no need for upper() and so
    in dn match)
  - implement a backsql_normalize() function to replace the upper()
    conversion routines
  - note that subtree deletion, subtree renaming and so could be easily
    implemented (rollback and consistency checks are available :)
  - implement "lastmod" and other operational stuff (ldap_entries table ?)

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Fri Aug 16 14:45:24 2002 UTC (19 years, 3 months ago) by ando
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Diff to: previous 1.5: preferred, colored
Changes since revision 1.5: +1 -1 lines
CHANGES:
- now all write operations appear to work correctly with PostgeSQL 7.0
- all write operations have been made transactional (atomic writes to
  entries are committed separately only in case of complete^1 success
  while all other operations are rolled-back by default)
- more cleanup and handling of exceptional conditions

TODO:
- deen to check with different databases and more up to date versions
  of both unixODBC and PostgreSQL.

^1: attribute add/modify/delete operations silently succeed if the
    appropriate add/delete proc does not exist for each attribute;
    this may be correct to hide undesired/unimplemented correspondence
    between LDAP and SQL databases; however, a more appropriate
    LDAP behavior would be a failure with LDAP_UNAVAILABLE if a
    single write operation cannot be executed for such reason

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Tue Aug 13 15:12:27 2002 UTC (19 years, 3 months ago) by ando
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Diff to: previous 1.4: preferred, colored
Changes since revision 1.4: +39 -27 lines
changes:
- re-style according to the style giudelines for better readability
- updated to recent frontend/backend API changes
- fixed a few quirks about normalization
- "optimized" a few memory allocation/string handling functions
- fixed a few quirks about add/modify (still have to look ad modrdn)

todo:
- there is still something broken (at least with PostgreSQL and IBM db2,
  the two RDBMS O have at hand) when adding
- move everything to struct bervals and try to save a few strlen
- try some LDAP/SQL syntax relation to use appropriate value bind if possible
- ...

Revision 1.4: download - view: text, markup - select for diffs
Fri Sep 7 11:04:11 2001 UTC (20 years, 2 months ago) by mit
Branches: MAIN
CVS tags: OPENLDAP_REL_ENG_2_MP, OPENLDAP_REL_ENG_2_1_BP, OPENLDAP_REL_ENG_2_1_BETA1, OPENLDAP_REL_ENG_2_1_ALPHA0, OPENLDAP_REL_ENG_2_1_3, OPENLDAP_REL_ENG_2_1_2
Branch point for: OPENLDAP_REL_ENG_2_1
Diff to: previous 1.3: preferred, colored
Changes since revision 1.3: +4 -3 lines

some cosmetics and minor problems fixed, pointed out by Mei-Hui Su (c++-style comments, newlines etc.)

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Thu Aug 2 15:28:59 2001 UTC (20 years, 4 months ago) by mit
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Diff to: previous 1.2: preferred, colored
Changes since revision 1.2: +3 -1 lines
A big bunch of improvements, contributed by Sam Drake and Raj Damani.
Summary of changes is cited below.
The patch still needs some cosmetic changes to be made, but is ready for testing.

-----Original Message-----
From: Sam Drake [mailto:drake@timesten.com]
Sent: Saturday, April 07, 2001 10:40 PM
To: 'mitya@seismic.ru'
Cc: openldap-devel@OpenLDAP.org
Subject: RE: Slapd frontend performance issues


FYI, here is a short description of the changes I made.  I'll package up the
changes asap, but it may take a couple of days.

The performance numbers quoted in this report were seen at my location with
a 100,000 object database ... the slower numbers I mentioned earlier were
reported by a customer with a 1,000,000 object database.

I also can't explain the very poor performance I saw with OpenLDAP and LDBM
with a 100,000 object database.

...Sam Drake / TimesTen Performance Software

----------

Work Performed

OpenLDAP 2.0.9, including back-sql, was built successfully on Solaris
8 using gcc.  The LDAP server itself, slapd, passed all tests bundled
with OpenLDAP.  OpenLDAP was built using Sleepycat LDBM release 3.1.17
as the "native" storage manager.

The experimental back-sql facility in slapd was also built
successfully.  It was built using Oracle release 8.1.7 and the Oracle
ODBC driver and ODBC Driver Manager from Merant.  Rudimentary testing
was performed with the data and examples provided with back-sql, and
back-sql was found to be functional.

Slapd and back-sql were then tested with TimesTen, using TimesTen
4.1.1.  Back-sql was not immediately functional with TimesTen due to a
number of SQL limitations in the TimesTen product.

Functional issues encountered were:

1. Back-sql issued SELECT statements including the construct,
   "UPPER(?)".  While TimesTen supports UPPER, it does not support the
   use of parameters as input to builtin functions.  Back-sql was
   modified to convert the parameter to upper case prior to giving it
   to the underlying database ... a change that is appropriate for all
   databases.

2. Back-sql issued SELECT statements using the SQL CONCAT function.
   TimesTen does not support this function.  Back-sql was modified to
   concatentate the necessary strings itself (in "C" code) prior to
   passing the parameters to SQL.  This change is also appropriate for
   all databases, not just TimesTen.

Once these two issues were resolved, back-sql could successfully
process LDAP searches using the sample data and examples provided with
back-sql.

While performance was not measured at this point, numerous serious
performance problems were observed with the back-sql code and the
generated SQL.  In particular:

1. In the process of implementing an LDAP search, back-sql will
   generate and execute a SQL query for all object classes stored in
   back-sql.  During the source of generating each SQL query, it is
   common for back-sql to determine that a particular object class can
   not possibly have any members satisfying the search.  For example,
   this can occur if the query searches an attribute of the LDAP
   object that does not exist in the SQL schema.  In this case,
   back-sql would generate and issue the SQL query anyway, including a
   clause such as "WHERE 1=0" in the generated SELECT.  The overhead
   of parsing, optimizing and executing the query is non-trivial, and
   the answer (the empty set) is known in advance. Solution: Back-sql
   was modified to stop executing a SQL query when it can be
   predetermined that the query will return no rows.

2. Searches in LDAP are fundamentally case-insensitive ("abc" is equal
   to "aBc").  However, in SQL this is not normally the case.
   Back-sql thus generated SQL SELECT statements including clauses of
   the form, "WHERE UPPER(attribute) = 'JOE'".  Even if an index is
   defined on the attribute in the relational database, the index can
   not be used to satisfy the query, as the index is case sensitive.
   The relational database then is forced to scan all rows in the
   table in order to satisfy the query ... an expensive and
   non-scalable proposition.  Solution: Back-sql was modified to allow
   the schema designer to add additional "upper cased" columns to the
   SQL schema.  These columns, if present, contain an upper cased
   version of the "standard" field, and will be used preferentially
   for searching.  Such columns can be provided for all searchable
   columns, some columns, or no columns.  An application using
   database "triggers" or similar mechanisms can automatically
   maintain these upper cased columns when the standard column is
   changed.

3. In order to implement the hierarchical nature of LDAP object
   hierarchies, OpenLDAP uses suffix searches in SQL.  For example, to
   find all objects in the subtree "o=TimesTen,c=us", a SQL SELECT
   statement of the form, "WHERE UPPER(dn) LIKE '%O=TIMESTEN,C=US'"
   would be employed.  Aside from the UPPER issue discussed above, a
   second performance problem in this query is the use of suffix
   search.  In TimesTen (and most relational databases), indexes can
   be used to optimize exact-match searches and prefix searches.
   However, suffix searches must be performed by scanning every row in
   the table ... an expensive and non-scalable proposition.  Solution:
   Back-sql was modified to optionally add a new "dn_ru" column to the
   ldap_entries table.  This additional column, if present, contains a
   byte-reversed and upper cased version of the DN.  This allows
   back-sql to generate indexable prefix searches.  This column is
   also easily maintained automatically through the use of triggers.

Results

A simple database schema was generated holding the LDAP objects and
attributes specified by our customer.  An application was written to
generate test databases.  Both TimesTen and Oracle 8.1.7 were
populated with 100,000 entry databases.

Load Times

Using "slapadd" followed by "slapindex", loading and indexing 100,000
entries in an LDBM database ran for 19 minutes 10 seconds.

Using a C++ application that used ODBC, loading 100,000 entries into
a disk based RDBMS took 17 minutes 53 seconds.

Using a C++ application that used ODBC, loading 100,000 entries into
TimesTen took 1 minute 40 seconds.

Search Times

The command, "timex timesearch.sh '(cn=fname210100*)'" was used to
test search times.  This command issues the same LDAP search 4000
times over a single LDAP connection.  Both the client and server
(slapd) were run on the same machine.

With TimesTen as the database, 4000 queries took 14.93 seconds, for a
rate of 267.9 per second.

With a disk based RDBMS as the database, 4000 queries took 77.79 seconds,
for a
rate of 51.42 per second.

With LDBM as the database, 1 query takes 76 seconds, or 0.076 per
second.  Something is clearly broken.

Revision 1.2: download - view: text, markup - select for diffs
Fri May 26 14:03:32 2000 UTC (21 years, 6 months ago) by mit
Branches: MAIN
Branch point for: OPENLDAP_REL_ENG_2
Diff to: previous 1.1: preferred, colored
Changes since revision 1.1: +3 -1 lines
Summary of changes:
- filter -> SQL translation bugfixes
- several memory leaks fixups
- improved configurability:
    - allows definition of  uppercasing function to support CIS matching on databases that do
    case sensitive compares (this fixes up Oracle issues, example updated)
    - allows more flexibility in stored procedures interface (different parameter order, optional return
      codes - see samples, and comments in backsql.h)
- synchronize function interfaces to recent changes in prototypes ("const" clauses etc.) made for all backends
  (those changes led to compile-time errors)

Revision 1.1: download - view: text, markup - select for diffs
Thu Mar 16 18:08:22 2000 UTC (21 years, 8 months ago) by mit
Branches: MAIN
added back-sql files

Revision 1.2.2.1: download - view: text, markup - select for diffs
Thu Jul 6 16:45:23 2000 UTC (21 years, 4 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2
CVS tags: OPENLDAP_REL_ENG_2_0_GAMMA, OPENLDAP_REL_ENG_2_0_BETA, OPENLDAP_REL_ENG_2_0_9, OPENLDAP_REL_ENG_2_0_8, OPENLDAP_REL_ENG_2_0_7, OPENLDAP_REL_ENG_2_0_6, OPENLDAP_REL_ENG_2_0_5, OPENLDAP_REL_ENG_2_0_4, OPENLDAP_REL_ENG_2_0_3, OPENLDAP_REL_ENG_2_0_27, OPENLDAP_REL_ENG_2_0_26, OPENLDAP_REL_ENG_2_0_25, OPENLDAP_REL_ENG_2_0_24, OPENLDAP_REL_ENG_2_0_23, OPENLDAP_REL_ENG_2_0_22, OPENLDAP_REL_ENG_2_0_21, OPENLDAP_REL_ENG_2_0_20, OPENLDAP_REL_ENG_2_0_2, OPENLDAP_REL_ENG_2_0_19, OPENLDAP_REL_ENG_2_0_18, OPENLDAP_REL_ENG_2_0_17, OPENLDAP_REL_ENG_2_0_16, OPENLDAP_REL_ENG_2_0_15, OPENLDAP_REL_ENG_2_0_14, OPENLDAP_REL_ENG_2_0_13, OPENLDAP_REL_ENG_2_0_12, OPENLDAP_REL_ENG_2_0_11, OPENLDAP_REL_ENG_2_0_10, OPENLDAP_REL_ENG_2_0_1, OPENLDAP_REL_ENG_2_0_0
Diff to: previous 1.2: preferred, colored; next MAIN 1.3: preferred, colored
Changes since revision 1.2: +0 -0 lines
Import experimental SQL from devel and associated configure
support.

Revision 1.4.2.3: download - view: text, markup - select for diffs
Fri Aug 30 00:57:50 2002 UTC (19 years, 3 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_1
CVS tags: OPENLDAP_REL_ENG_2_1_9, OPENLDAP_REL_ENG_2_1_8, OPENLDAP_REL_ENG_2_1_7, OPENLDAP_REL_ENG_2_1_6, OPENLDAP_REL_ENG_2_1_5, OPENLDAP_REL_ENG_2_1_30, OPENLDAP_REL_ENG_2_1_29, OPENLDAP_REL_ENG_2_1_28, OPENLDAP_REL_ENG_2_1_27, OPENLDAP_REL_ENG_2_1_26, OPENLDAP_REL_ENG_2_1_25, OPENLDAP_REL_ENG_2_1_24, OPENLDAP_REL_ENG_2_1_23, OPENLDAP_REL_ENG_2_1_22, OPENLDAP_REL_ENG_2_1_21, OPENLDAP_REL_ENG_2_1_20, OPENLDAP_REL_ENG_2_1_19, OPENLDAP_REL_ENG_2_1_18, OPENLDAP_REL_ENG_2_1_17, OPENLDAP_REL_ENG_2_1_16, OPENLDAP_REL_ENG_2_1_15, OPENLDAP_REL_ENG_2_1_14, OPENLDAP_REL_ENG_2_1_13, OPENLDAP_REL_ENG_2_1_12, OPENLDAP_REL_ENG_2_1_11, OPENLDAP_REL_ENG_2_1_10
Diff to: previous 1.4.2.2: preferred, colored; branchpoint 1.4: preferred, colored; next MAIN 1.5: preferred, colored
Changes since revision 1.4.2.2: +4 -1 lines
Sync with HEAD

Revision 1.4.2.2: download - view: text, markup - select for diffs
Thu Aug 29 01:51:02 2002 UTC (19 years, 3 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_1
Diff to: previous 1.4.2.1: preferred, colored; branchpoint 1.4: preferred, colored
Changes since revision 1.4.2.1: +102 -15 lines
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Revision 1.4.2.1: download - view: text, markup - select for diffs
Fri Aug 16 17:19:49 2002 UTC (19 years, 3 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_1
CVS tags: OPENLDAP_REL_ENG_2_1_4
Diff to: previous 1.4: preferred, colored
Changes since revision 1.4: +39 -27 lines
Sync with HEAD

Revision 1.9.2.6: download - view: text, markup - select for diffs
Thu Jan 20 17:01:16 2005 UTC (16 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_2
CVS tags: OPENLDAP_REL_ENG_2_2_30, OPENLDAP_REL_ENG_2_2_29, OPENLDAP_REL_ENG_2_2_28, OPENLDAP_REL_ENG_2_2_27, OPENLDAP_REL_ENG_2_2_26, OPENLDAP_REL_ENG_2_2_25, OPENLDAP_REL_ENG_2_2_24, OPENLDAP_REL_ENG_2_2_23, OPENLDAP_REL_ENG_2_2_22, OPENLDAP_REL_ENG_2_2_21
Diff to: previous 1.9.2.5: preferred, colored; branchpoint 1.9: preferred, colored; next MAIN 1.10: preferred, colored
Changes since revision 1.9.2.5: +2 -2 lines
Happy new year!

Revision 1.9.2.5: download - view: text, markup - select for diffs
Fri Sep 24 14:09:15 2004 UTC (17 years, 2 months ago) by ando
Branches: OPENLDAP_REL_ENG_2_2
CVS tags: OPENLDAP_REL_ENG_2_2_20, OPENLDAP_REL_ENG_2_2_19, OPENLDAP_REL_ENG_2_2_18
Diff to: previous 1.9.2.4: preferred, colored; branchpoint 1.9: preferred, colored
Changes since revision 1.9.2.4: +21 -2 lines
import improvements from HEAD

Revision 1.9.2.4: download - view: text, markup - select for diffs
Mon Apr 12 18:20:14 2004 UTC (17 years, 7 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_2
CVS tags: OPENLDAP_REL_ENG_2_2_9, OPENLDAP_REL_ENG_2_2_17, OPENLDAP_REL_ENG_2_2_16, OPENLDAP_REL_ENG_2_2_15, OPENLDAP_REL_ENG_2_2_14, OPENLDAP_REL_ENG_2_2_13, OPENLDAP_REL_ENG_2_2_12, OPENLDAP_REL_ENG_2_2_11, OPENLDAP_REL_ENG_2_2_10
Diff to: previous 1.9.2.3: preferred, colored; branchpoint 1.9: preferred, colored
Changes since revision 1.9.2.3: +47 -6 lines
From HEAD:
New module build stuff
updateref updates, new SHADOW DBFLAGS, etc.
paging control updates
limits updates
fixed duplicate value checks
fixed permissive modify
sasl auxprop propname changes
back-bdb "" suffix fixes
fixed back-bdb/ldbm approx non-indexing fixings
updated back-sql

Revision 1.9.2.3: download - view: text, markup - select for diffs
Tue Jan 20 23:44:21 2004 UTC (17 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_2
CVS tags: OPENLDAP_REL_ENG_2_2_8, OPENLDAP_REL_ENG_2_2_7, OPENLDAP_REL_ENG_2_2_6, OPENLDAP_REL_ENG_2_2_5
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Changes since revision 1.9.2.2: +151 -2 lines
Sync with HEAD

Revision 1.9.2.2: download - view: text, markup - select for diffs
Thu Jan 1 18:16:39 2004 UTC (17 years, 11 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_2
Diff to: previous 1.9.2.1: preferred, colored; branchpoint 1.9: preferred, colored
Changes since revision 1.9.2.1: +2 -2 lines
Happy new year

Revision 1.9.2.1: download - view: text, markup - select for diffs
Mon Dec 15 22:05:26 2003 UTC (17 years, 11 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_2
CVS tags: OPENLDAP_REL_ENG_2_2_4
Diff to: previous 1.9: preferred, colored
Changes since revision 1.9: +19 -16 lines
Sync with HEAD

Revision 1.30.2.11: download - view: text, markup - select for diffs
Mon Feb 11 23:24:24 2008 UTC (13 years, 9 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
CVS tags: OPENLDAP_REL_ENG_2_3_43, OPENLDAP_REL_ENG_2_3_42, OPENLDAP_REL_ENG_2_3_41
Diff to: previous 1.30.2.10: preferred, colored; branchpoint 1.30: preferred, colored; next MAIN 1.31: preferred, colored
Changes since revision 1.30.2.10: +2 -2 lines
Happy new year! (belated)

Revision 1.30.2.10: download - view: text, markup - select for diffs
Tue Jan 2 21:44:07 2007 UTC (14 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
CVS tags: OPENLDAP_REL_ENG_2_3_40, OPENLDAP_REL_ENG_2_3_39, OPENLDAP_REL_ENG_2_3_38, OPENLDAP_REL_ENG_2_3_37, OPENLDAP_REL_ENG_2_3_36, OPENLDAP_REL_ENG_2_3_35, OPENLDAP_REL_ENG_2_3_34, OPENLDAP_REL_ENG_2_3_33, OPENLDAP_REL_ENG_2_3_32
Diff to: previous 1.30.2.9: preferred, colored; branchpoint 1.30: preferred, colored
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happy new year

Revision 1.30.2.9: download - view: text, markup - select for diffs
Tue Jan 3 22:16:24 2006 UTC (15 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
CVS tags: OPENLDAP_REL_ENG_2_3_31, OPENLDAP_REL_ENG_2_3_30, OPENLDAP_REL_ENG_2_3_29, OPENLDAP_REL_ENG_2_3_28, OPENLDAP_REL_ENG_2_3_27, OPENLDAP_REL_ENG_2_3_26, OPENLDAP_REL_ENG_2_3_25, OPENLDAP_REL_ENG_2_3_24, OPENLDAP_REL_ENG_2_3_23, OPENLDAP_REL_ENG_2_3_22, OPENLDAP_REL_ENG_2_3_21, OPENLDAP_REL_ENG_2_3_20, OPENLDAP_REL_ENG_2_3_19, OPENLDAP_REL_ENG_2_3_18, OPENLDAP_REL_ENG_2_3_17, OPENLDAP_REL_ENG_2_3_16, OPENLDAP_REL_ENG_2_3_15
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Changes since revision 1.30.2.8: +2 -2 lines
Happy new year!

Revision 1.30.2.8: download - view: text, markup - select for diffs
Wed Aug 10 16:28:50 2005 UTC (16 years, 3 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
CVS tags: OPENLDAP_REL_ENG_2_3_9, OPENLDAP_REL_ENG_2_3_8, OPENLDAP_REL_ENG_2_3_7, OPENLDAP_REL_ENG_2_3_6, OPENLDAP_REL_ENG_2_3_5, OPENLDAP_REL_ENG_2_3_14, OPENLDAP_REL_ENG_2_3_13, OPENLDAP_REL_ENG_2_3_12, OPENLDAP_REL_ENG_2_3_11, OPENLDAP_REL_ENG_2_3_10
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Sync with HEAD

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Tue Aug 9 21:04:05 2005 UTC (16 years, 3 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
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Revision 1.30.2.6: download - view: text, markup - select for diffs
Thu Jun 9 16:31:12 2005 UTC (16 years, 5 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
CVS tags: OPENLDAP_REL_ENG_2_3_4
Diff to: previous 1.30.2.5: preferred, colored; branchpoint 1.30: preferred, colored
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Sync with HEAD
Ready for release

Revision 1.30.2.5: download - view: text, markup - select for diffs
Fri Jun 3 19:54:16 2005 UTC (16 years, 5 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
Diff to: previous 1.30.2.4: preferred, colored; branchpoint 1.30: preferred, colored
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Merge in recent changes to HEAD

Revision 1.30.2.4: download - view: text, markup - select for diffs
Wed May 18 16:29:23 2005 UTC (16 years, 6 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
Diff to: previous 1.30.2.3: preferred, colored; branchpoint 1.30: preferred, colored
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Revision 1.30.2.3: download - view: text, markup - select for diffs
Mon Mar 14 22:25:02 2005 UTC (16 years, 8 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
CVS tags: OPENLDAP_REL_ENG_2_3_3BETA, OPENLDAP_REL_ENG_2_3_2BETA
Diff to: previous 1.30.2.2: preferred, colored; branchpoint 1.30: preferred, colored
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Mon Jan 24 21:28:53 2005 UTC (16 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
CVS tags: OPENLDAP_REL_ENG_2_3_1ALPHA
Diff to: previous 1.30.2.1: preferred, colored; branchpoint 1.30: preferred, colored
Changes since revision 1.30.2.1: +4 -3 lines
Sync with HEAD

Revision 1.30.2.1: download - view: text, markup - select for diffs
Thu Jan 20 18:04:02 2005 UTC (16 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_3
Diff to: previous 1.30: preferred, colored
Changes since revision 1.30: +209 -36 lines
Sync with HEAD

Revision 1.49.2.10: download - view: text, markup - select for diffs
Tue Jan 4 23:50:46 2011 UTC (10 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_4
CVS tags: OPENLDAP_REL_ENG_2_4_25, OPENLDAP_REL_ENG_2_4_24, OPENLDAP_RELEASE
Diff to: previous 1.49.2.9: preferred, colored; branchpoint 1.49: preferred, colored; next MAIN 1.50: preferred, colored
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Happy New Year!

Revision 1.49.2.9: download - view: text, markup - select for diffs
Tue Dec 21 23:28:50 2010 UTC (10 years, 11 months ago) by quanah
Branches: OPENLDAP_REL_ENG_2_4
Diff to: previous 1.49.2.8: preferred, colored; branchpoint 1.49: preferred, colored
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ITS#6617

Revision 1.49.2.8: download - view: text, markup - select for diffs
Fri Dec 17 17:59:13 2010 UTC (10 years, 11 months ago) by quanah
Branches: OPENLDAP_REL_ENG_2_4
Diff to: previous 1.49.2.7: preferred, colored; branchpoint 1.49: preferred, colored
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ITS#6612

Revision 1.49.2.7: download - view: text, markup - select for diffs
Fri Dec 17 17:52:28 2010 UTC (10 years, 11 months ago) by quanah
Branches: OPENLDAP_REL_ENG_2_4
Diff to: previous 1.49.2.6: preferred, colored; branchpoint 1.49: preferred, colored
Changes since revision 1.49.2.6: +9 -1 lines
improve ID logging when arbitrary key is set

Revision 1.49.2.6: download - view: text, markup - select for diffs
Tue Apr 13 20:23:42 2010 UTC (11 years, 7 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_4
CVS tags: OPENLDAP_REL_ENG_2_4_23, OPENLDAP_REL_ENG_2_4_22
Diff to: previous 1.49.2.5: preferred, colored; branchpoint 1.49: preferred, colored
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happy belated new year

Revision 1.49.2.5: download - view: text, markup - select for diffs
Thu Jan 22 00:01:11 2009 UTC (12 years, 10 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_4
CVS tags: OPENLDAP_STABLE, OPENLDAP_REL_ENG_2_4_21, OPENLDAP_REL_ENG_2_4_20, OPENLDAP_REL_ENG_2_4_19, OPENLDAP_REL_ENG_2_4_18, OPENLDAP_REL_ENG_2_4_17, OPENLDAP_REL_ENG_2_4_16, OPENLDAP_REL_ENG_2_4_15, OPENLDAP_REL_ENG_2_4_14
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Update copyright for next release

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Mon Feb 11 23:26:48 2008 UTC (13 years, 9 months ago) by kurt
Branches: OPENLDAP_REL_ENG_2_4
CVS tags: OPENLDAP_REL_ENG_2_4_9, OPENLDAP_REL_ENG_2_4_8, OPENLDAP_REL_ENG_2_4_13, OPENLDAP_REL_ENG_2_4_12, OPENLDAP_REL_ENG_2_4_11, OPENLDAP_REL_ENG_2_4_10
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Happy new year! (belated)

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Tue Nov 27 19:45:37 2007 UTC (14 years ago) by quanah
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CVS tags: OPENLDAP_REL_ENG_2_4_7
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Silence warnings

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Fri Aug 31 23:14:05 2007 UTC (14 years, 3 months ago) by quanah
Branches: OPENLDAP_REL_ENG_2_4
CVS tags: OPENLDAP_REL_ENG_2_4_6, OPENLDAP_REL_ENG_2_4_5BETA
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Sync with HEAD for OL 2.4.5

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Tue Feb 13 20:22:28 2007 UTC (14 years, 9 months ago) by kurt
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